Function draw
--- Introduction ---

Function draw is an exercise on the graphic recognition of functions of one real variable.
The server will give you the graph of a function f, whose expression will
be hidden. Then you are asked to draw the graph of another function such as
f(-x), 2f(x), f(x-1), etc (see the menu below), with the mouse.
You will have a score according to the precision of your drawing.

Set up

Type of the function:

Number of drawings in one session:
1,
2,
3,
4,
5,
6,
7,
8
(The score is attributed only at the end of a session.)